Fastener



Jul 11, 1928. 1,677,858

7 F. s. CARR File'd Feb. 26.

Fig. 7.

Patented July17, 1928.

UNITED STATES PATENT OFF-ICE.

FRED s. CARR, OF NEWTON, MAss QHusETrs, AssIGNoR'To CARR FASTENER COILPANY, or CAMBRIDGE, MASSACHUSETTS, A CORPORATION OF MAINE.

FASTENER.

Application filed February 26, 1925. Serial No. 11,692. I

v This invention aims to provide an improved carpetfastenerfor securingrugs,

carpets and the like to floors.

Figure 1 is a plan view of a portion of a" carpet, showing theunderlying fastener parts in dotted lines;

Fig. 2 1s a section on the line 2-2. of'Fig.

1, being partly in elevation; Fig. 3 is a plan view of the socket beforeattachment to the carpet;

Fig. 4 is a plan view of the prong-presenting and spring-positioningmember;

Fig. 5 is a section on the line 5-5 of e- Fig. 6 is a side elevation ofthe prong-preg senting and spring-positioning part shown inFig.4; V Fig.7 is a plan view of the second form of socket; and v H I Fig. 8 is asection on the line 88 of Referring to the drawings, I have shown acarpet fastener which includes a stud se-. cured to .the floor of anautomobile, or the like support, and a socket secured to acarpet or thelike for engagement with the stud to hold the carpet in placerelative'to' The stud, as illustrated, is Substantially. as shown anddescribed in the United States Letters Patent No. 1,433,783, issuedOctober 31, 1922, to Carr Fastener; Company, assignee of Moses F. Carr.This stud, as illustrated in Fig. 2, includes a socket-engaging part 1secured to thefloor 3-by the attaching screw 2 substantially as setforth 1n the above-mentioned Letters Patent.

The socket, as illustrated, is somewhat similar to the one shown anddescribed in the United States Letters Patent No. 1,535,- 981, issuedApril 28, 1925, to Carr F astener Company, assignee of Fred S. Carr, anddiffers therefrom only as to the location and 1 supporting of the prongsfor attaching the socket to the carpet. I 1

This socket, as illustrated, comprises a bottom plate 4 having astud-receiving aperture 5 therethrough to permit passage of the head ofthe socket-engaging part 1 of the stud. -The bottom plate also presentsat its periphery an upstanding wall6 which provides a central recess inthe bottom plate 4% to receive the generally circular spring 7 whichnormally intersects the stud-receiving aperture '5. This spring 7 isheld in posit1on relative to the bottom plate 4 by a spr ng-retainingdome-shaped plate 8 resting, at its outer periphery, upon the bottomplate at and presenting a plurality ofup-fl standing attaching prongs 9.

The spring-retaining. plate 8 issecured to the bottom plate 4 byv aplurality of lugs 19 pressed from the upstanding wall portion 6 of thebottom plate and bent inwardly and downwardly between the upstandingattaching prongs 9, .as best illustrated in Figs. 2 and 3. Tostrengthenvthe wall 6, which is somewhat weakened by removal of themate. r al for the lugs 10, I have provided a continuous ring portion 11which. extends out-- wardly (Figs. 3 and 5) from the upper periphery ofthe upstanding wall 6.

The socket is secured to the carpet 12 by the prongs9: which'engage thewarp weft threads thereof in substantially the same manner and for thesame purposes as set forth in the above-mentioned Patent N 0. 1,535,981.V i i u In this instance, however, theprongs are. formed from, thespring-retaining plate; 8 and are bent outwardly and downwardly over andthrough'the warp and weft threads of the carpet (Fig. 2) thereby to gripthe web of the carpet between the ring portion 11 and the prongs 9. Thering portion 11 not only provides a smooth surface against. which thecarpet may bepressed by thev prongs, but also supports and; strengthensthe prongs to such an extentthat it is prac- Itically impossible forthem to be bent out of shape or broken by the weight of a. personstanding upon the carpet directly over the fastener socket. I

The ring portionll also prevents slippingof the warp or weft threadsover the free ends of the hook-shaped portions of any of the attachingprongs, because the threads are squeezed tightly betweenthe prongs 9 andthe ring portion 11.

Engagement of the socket with the stud is effected in the usual mannerby pressing upon the socket until the head 1 of the stud passes throughthe aperturesin the bottom plate 4 and spring-retaining plate 8, there-.by permitting the spring 7 to engage the neck of the stud. I v

Disengagement of the socket from the stud is eifected by grasping theedge of the carpet and. e

adjacent the socket and pulling upwardly thereupon.

Referring to Figs. 7 and 8, I have shown a fastener socket substantiallyas shown and described relative to thefirst construction illustrated,except that the attaching prongs stood that I have done so for purposesof clarification only and that my invention is best defined in thefollowing claims.

Claims: 15A fastener socket comprising a body portion-providing astud-receiving aperture surrounded by resilient stud engaging means, awall at the outer periphery of said body portion adapted to be seatedagainst the under side of a support and a plurality of attaching prongsextending upwardly from said body portion between the inner periphery ofsaid wall and the resilient stud-engagi'ng means, the bases of saidprongs being located in a plane substantially below the plane of theupperface of said wall, thereby to permit the bend of said prongs tobegin at points below the plane of said wall when said prongs areclinched into engagement with the support. Y

2; A carpet fastener socket comprising a casing presenting astud-receiving aperture of fixed dimensions, a stud-engaging springintersecting said aperture, a ring portion at the periphery of saidcasing, and a plurality of attaching prongs extending upwardly from saidcasing at points between said.

springand said ring portion and below the plane of said ring portion,sa1d prongs adapted to be bent outwardly over S2L1d ring portion toengage the warp and weft as to be supported by said ring portion whenthe carpet is stepped upon directly over the socket.

3. A'carpet fastener socket comprising, in combination, a casingpresenting'a stud-recei'vi'ng aperture," a spring intersecting saidaperture for engagement with a stud, springpositioning means assemblingsaid spring with said casing and attachingimeans upstanding from andintegral withsaid spring positioning means for securing said socket to acarpet. I I 4 4. A carpet fastener socket comprising, in combination, acasing presenting a stud-re ceiving aperture, a spring intersectingsaidl aperture for engagement with a stud,springpositioning means forpositioning said spring relative to said aperture and a plurality ofattaching prongs extending upwardly from said positioning means andadapted to bec-urved outwardly and downward'l'y over the periphery ofsaid casing thereby to provide hooks for engagement over the warp andweft threads of the carpet, the threads being gripped between the prongsand the periphery of the socket. 7

53A carpet fastener socket including acasing, a stud-engaging springmember, spring-positioning member,- means integral with said casing forsecuring said springpositioning member thereto, and a; plurality ofattaching prongs pressed from said spring-positioning member forsecuring said casing to a; carpet. I, 1

6. A carpet fastener soclret'includinga dish-shaped plate havinganupstanding wall providino' a centralrecess in said-plate, acontract-ibis and expansible spring forgripping a cooperating stud and aseparate prong-presenting and spring-retaining part secured tosaid plateand surrounded by saidwall. I In testimony whereof, I have signed'myname to this specification. I L

